comment_notify.module 26.9 KB
Newer Older
1 2 3 4 5
<?php
// $Id$

/**
 * @file
6 7
 *
 * This module provides comment follow-up e-mail notification for anonymous and registered users.
8 9
 */

10 11 12 13 14 15 16 17 18 19 20 21 22 23
define('AUTHOR_MAILTEXT',
'Hi !name,

You have received a comment on: "!node_title"

You can view the comment at the following url
!comment_url

You will receive emails like this for all replies to your posts. You can disable this by logging in and going to your account settings.

Webmaster of !site
!mission
!uri');

24 25
define('DEFAULT_MAILTEXT',
'Hi !name,
26

27
!commname has commented on: "!node_title"
28 29 30

The post is about
----
31
!node_teaser
32 33 34
----

You can view the comment at the following url
35
!comment_url
36

37
You can stop receiving emails when someone replies to this post,
38
by going to !link1
39

40
If you have auto-following enabled in your account, you will receive emails like this for all replies to a blog post you commented on. You can disable this by logging in and going to your account settings or unchecking the flag at the time you post the comment.
41

42
You can set up auto-following feature for all future posts
43
by creating your own user with a few clicks here !uri/user/register
44 45 46

Thanks for your feedback,

47 48 49
Webmaster of !site
!mission
!uri');
50

51 52 53 54
define('COMMENT_NOTIFY_DISABLED', 0);
define('COMMENT_NOTIFY_NODE', 1);
define('COMMENT_NOTIFY_COMMENT', 2);

55 56 57
/**
 * Implementation of hook_help().
 */
58 59
function comment_notify_help($path, $arg) {
  switch ($path) {
60
    case 'admin/modules#description':
61
      return t('Comment follow-up e-mail notification for anonymous and registered users.');
62 63 64 65
      break;
  }
}

66
/**
67
 * Insert our checkbox, add a submit button, and populate fields.
68
 */
69
function comment_notify_form_alter(&$form, &$form_state, $form_id) {
70 71
  global $user;

72
  // Only do alter the form if it's a comment form and the user has the permission to subscribe
73
  if ($form_id != 'comment_form' || !user_access('subscribe to comments')) {
74 75
    return;
  }
76

77 78
  // Only add the checkbox if this is an enabled content type
  $node = node_load($form['nid']['#value']);
79 80
  $enabled_types = variable_get('comment_notify_node_types', array($node->type => TRUE));
  if (empty($enabled_types[$node->type])) {
81
    return;
82
  }
83

84 85 86
  drupal_add_css(drupal_get_path('module', 'comment_notify') .'/comment_notify.css');
  drupal_add_js(drupal_get_path('module', 'comment_notify') .'/comment_notify.js');

87
  $total_options = array(
88 89
    COMMENT_NOTIFY_NODE     => t('All comments'),
    COMMENT_NOTIFY_COMMENT  => t('Replies to my comment')
90
  );
91 92
  $options = variable_get('comment_notify_available_alerts', array(COMMENT_NOTIFY_NODE, COMMENT_NOTIFY_COMMENT));
  foreach ($options as $key => $available) {
93
    if ($key == $available) {
94 95 96
      $available_options[$available] = $total_options[$available];
    }
  }
97

98
  // Add the checkbox for anonymous users and set the default based on admin settings.
99
  if ($user->uid == 0) {
100
    // If anonymous user's can't enter their e-mail don't tempt them with the checkbox.
101 102 103
    if (empty($form['mail'])) {
      return;
    }
104
    $preference = variable_get('comment_notify_default_anon_mailalert', COMMENT_NOTIFY_DISABLED);
105
  }
106 107
  else {
    $user_preference = db_result(db_query("SELECT comment_notify FROM {comment_notify_user_settings} WHERE uid = %d", $user->uid));
108
    $preference = !empty($user_preference) ? $user_preference : variable_get('comment_notify_default_registered_mailalert', COMMENT_NOTIFY_DISABLED);
109 110
  }

111
  // If you want to hide this on your site see http://drupal.org/node/322482
112
  $form['notify_open'] = array('#value' => '<div id="comment-notify">');
113
  $form['notify'] = array(
114 115 116 117 118
    '#type' => 'checkbox',
    '#title' => t('Notify me when new comments are posted'),
    '#default_value' => $preference,
  );

119 120 121 122 123 124 125 126 127 128 129 130
  if (count($available_options) > 1) {
    $form['notify_type'] = array(
      '#type' => 'radios',
      '#options' => $available_options,
    );
  }
  else {
    $form['notify_type'] = array(
      '#type' => 'hidden',
    );
  }
  $form['notify_type']['#default_value'] = $preference;
131

132
  // If this is an existing comment we set the default value based on their selection last time.
133
  if ($form['cid']['#value'] != '') {
134 135
    $notify = db_result(db_query("SELECT notify FROM {comment_notify} WHERE cid = %d", $form['cid']['#value']));
    $form['notify']['#default_value'] = $notify;
136
    $form['notify_type']['#default_value'] = $notify;
137
  }
138
  $form['notify_close'] = array('#value' => '</div>', '#weight' => 9);
139
}
140

141
/**
142
 * Implementation of hook_perm().
143 144
 */
function comment_notify_perm() {
145
  return array('administer comment notify', 'subscribe to comments');
146
}
147 148 149 150

/**
 * Implementation of hook_menu().
 */
151 152 153
function comment_notify_menu() {

  $items['admin/settings/comment_notify'] = array(
154
    'title' => 'Comment notify',
155 156 157
    'description' => 'Configure settings for e-mails about new comments.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('comment_notify_settings'),
158
    'access arguments' => array('administer comment notify'),
159
    'type' => MENU_NORMAL_ITEM,
160
  );
161
  $items['admin/settings/comment_notify/settings'] = array(
162 163 164 165
    'title' => 'Settings',
    'description' => 'Configure settings for e-mails about new comments.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('comment_notify_settings'),
166
    'access arguments' => array('administer comment notify'),
167 168
    'type' => MENU_DEFAULT_LOCAL_TASK,
  );
169

170 171 172 173 174 175
  $items['admin/settings/comment_notify/unsubscribe'] = array(
    'title' => 'Unsubscribe',
    'description' => 'Unsubscribe an email from all notifications.',
    'weight' => 2,
    'page callback' => 'drupal_get_form',
    'page arguments' => array('comment_notify_unsubscribe'),
176
    'access arguments' => array('administer comment notify'),
177 178 179 180 181 182 183 184
    'type' => MENU_LOCAL_TASK,
  );
  $items['comment_notify'] = array(
    'title' => 'comment notify',
    'page callback' => 'comment_notify_page',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK
  );
185 186 187 188

  return $items;
}

189 190 191
/**
 * Page callback to allow users to unsubscribe simply by visiting the page.
 */
192 193 194
function comment_notify_page() {
  global $user;

195 196
  $op = $_POST['op'];
  $edit = $_POST['edit'];
197

198
  $page_content = ' ';
199 200 201 202 203 204 205
  if (empty($op)) {
    $op = arg(1);
  }
  $arg = arg(2);

  switch ($op) {
    case 'disable':
206
      $key = $arg;
207
      db_query("UPDATE {comment_notify} SET notify = 0 WHERE notify_hash = '%s'", $arg);
208 209 210

      drupal_set_message(t('Your comment follow-up notification for this post was disabled. Thanks.'));
      $title = t('Disabled comment follow-up notification feature for this post.');
211 212
      break;
    default;
213
      $title = t('Comment notify');
214 215
      break;
  }
216

217
  drupal_set_title($title);
218
  return $page_content;
219 220
}

221
/**
222
 * Implementation of hook_comment().
223 224 225 226
 */
function comment_notify_comment($comment, $op) {
  global $user;

227 228
  // In theory, the update or insert operations are duplicates with publish which
  // would lead to duplicate messages.  _comment_notify_mailalert() protects against that.
229
  switch ($op) {
230
    case 'validate':
231 232
       // We assume that if they are non-anonymous then they have a valid mail.
       // For anonymous users, though, we verify that they entered a mail and let comment.module validate it is real.
233 234 235 236
      if (!$user->uid && $comment['notify'] && empty($comment['mail'])) {
        form_set_error('mail', t('If you want to subscribe to comments you must supply a valid e-mail address.'));
      }
      break;
237 238 239 240
    case 'publish':
      // And send notifications - the real purpose of the module.
      _comment_notify_mailalert($comment);
      break;
241
    case 'update':
242
      // In case they have changed their status, save it in the database.
243
      $sql = 'UPDATE {comment_notify} SET notify = %d WHERE cid = %d';
244 245 246 247 248 249
      if ($comment['notify']) {
        db_query($sql, $comment['notify_type'], $comment['cid']);
      }
      else {
        db_query($sql, 0, $comment['cid']);
      }
250 251 252 253
      // And send notifications - the real purpose of the module.
      if ($comment['status'] == COMMENT_PUBLISHED) {
        _comment_notify_mailalert($comment);
      }
254
      break;
255
    case 'insert':
256
      // For new comments, we first build up a string to be used as the identifier for the alert
257
      $mail = empty($comment['mail']) ? $user->mail : $comment['mail'];
258
      $notify_hash = drupal_get_token($mail . $comment['cid']);
259 260 261 262

      if ($comment['notify']) {
        $notify = $comment['notify_type'];
        $current = db_result(db_query("SELECT count(1) from {comment_notify_user_settings} WHERE uid = %d", $user->uid));
263
        if ($current == 0 && $user->uid) {
264 265 266 267 268 269
          db_query("INSERT INTO {comment_notify_user_settings} (uid, comment_notify) VALUES (%d, %d)", $user->uid, $comment['notify_type']);
        }
      }
      else {
        $notify = $comment['notify'];
      }
270
      // And then save the data.
271 272
      db_query("INSERT INTO {comment_notify} (cid, notify, notify_hash) values (%d, %d, '%s')", $comment['cid'], $notify, $notify_hash);

273 274 275 276
      // And send notifications - the real purpose of the module.
      if ($comment['status'] == COMMENT_PUBLISHED) {
        _comment_notify_mailalert($comment);
      }
277
      break;
278 279 280
    case 'delete':
      db_query("DELETE FROM {comment_notify} WHERE cid = %d", $comment->cid);
      break;
281 282 283 284 285 286 287 288 289
  }
}

/**
 * Implementation of hook_user().
 */
function comment_notify_user($type, &$edit, &$user, $category = NULL) {
  switch ($type) {
    case 'form':
290
      if ($category == 'account' && user_access('subscribe to comments', $user)) {
291 292
        $form = array();
        $form['comment_notify_settings'] = array(
293 294 295 296 297 298
          '#type' => 'fieldset',
          '#title' => t('Comment follow-up notification settings'),
          '#weight' => 4,
          '#collapsible' => TRUE
        );

299 300 301 302 303 304 305
        $form['comment_notify_settings']['node_notify_mailalert'] = array(
          '#type' => 'checkbox',
          '#title' => t('Receive node follow-up notification e-mails'),
          '#default_value' => isset($edit['node_notify_mailalert']) ? $edit['node_notify_mailalert'] : FALSE,
          '#description' => t('Check this box to receive an e-mail notification for follow-ups on your nodes (pages, forum topics, etc). You can not disable notifications for individual threads.')
        );

306
        $form['comment_notify_settings']['comment_notify_mailalert'] = array(
307
          '#type' => 'select',
308
          '#title' => t('Receive comment follow-up notification e-mails'),
309
          '#default_value' => isset($edit['comment_notify_mailalert']) ? $edit['comment_notify_mailalert'] : variable_get('comment_notify_default_registered_mailalert', COMMENT_NOTIFY_DISABLED),
310 311
          '#options' => array(
            COMMENT_NOTIFY_DISABLED => t('No notifications'),
312 313
            COMMENT_NOTIFY_NODE     => t('All comments'),
            COMMENT_NOTIFY_COMMENT  => t('Replies to my comment')
314
          ),
315
          '#description' => t("Check this box to receive e-mail notification for follow-up comments to comments you posted. You can later disable this on a post-by-post basis... so if you leave this to YES, you can still disable follow-up notifications for comments you don't want follow-up mails anymore - i.e. for very popular posts.")
316
        );
317 318
        return $form;
      }
319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337
      break;

    case 'submit':
      // Save the values of node_notify_mailalert and comment_notify_mailalert
      // to {comment_notify_user_settings}.
      if (db_result(db_query('SELECT uid FROM {comment_notify_user_settings} WHERE uid = %d', $user->uid))) {
        db_query('UPDATE {comment_notify_user_settings} SET node_notify = %d, comment_notify = %d WHERE uid = %d', $edit['node_notify_mailalert'], $edit['comment_notify_mailalert'], $user->uid);
      }
      else {
        db_query('INSERT INTO {comment_notify_user_settings} (uid, node_notify, comment_notify) VALUES (%d, %d, %d)', $user->uid, $edit['node_notify_mailalert'], $edit['comment_notify_mailalert']);
      }

      // Unset them from $user so they don't also get saved into {users}.data.
      unset($edit['node_notify_mailalert']);
      unset($edit['comment_notify_mailalert']);
      break;

    case 'load':
      $user_settings = db_fetch_array(db_query('SELECT node_notify AS node_notify_mailalert, comment_notify AS comment_notify_mailalert FROM {comment_notify_user_settings} WHERE uid = %d', $user->uid));
338 339 340 341
      if (!empty($user_settings)) {
        foreach ($user_settings as $property => $value) {
          $user->$property = $value;
        }
342 343 344 345 346 347
      }
      break;

    case 'delete':
      db_query('DELETE FROM {comment_notify_user_settings} WHERE uid = %d', $user->uid);
      break;
348

349 350 351 352
      break;
  }
}

353 354
/**
 * Private function to send the notifications.
greggles's avatar
greggles committed
355
 *
356 357 358
 * @param $comment
 *   The comment array as found in hook_comment $op = publish.
 */
359 360
function _comment_notify_mailalert($comment) {
  $comment = (object) $comment;
361
  global $language;
362
  global $base_url;
363
  global $user;
364

365 366 367 368 369 370 371 372 373 374
  $nid = $comment->nid;
  $cid = $comment->cid;

  // Check to see if a notification has already been sent for this
  // comment so that edits to a comment don't trigger an additional
  // notification.
  if (db_result(db_query('SELECT cid from {comment_notify} WHERE cid = %d AND notified = %d', $cid, 1))) {
    return;
  }

375
  $initial_language = $language;
376

377
  if (function_exists('locale')) {
378
    $languages = locale_language_list();
379 380 381
    $languages = $languages['name'];
  }

382 383
  $node = node_load($nid);
  if (!isset($comment->mail)) {
384
    $comment_account = user_load(array('name' => $comment->name));
385 386 387 388 389
    $comment_mail = $comment_account->mail;
  }
  else {
    $comment_mail = $comment->mail;
  }
390 391 392 393
  $sent_to = array();

  // Send to a subscribed author if they are not the current commenter
  $author = user_load(array('uid' => $node->uid));
394
  if (!empty($author->node_notify_mailalert) && $author->node_notify_mailalert == 1 && $user->mail != $author->mail) {
395 396 397 398
    // Get the author's language.
    $language = user_preferred_language($author);
    $message['subject'] = t('!site :: new comment for your post.', array('!site' => variable_get('site_name', 'drupal')));
    $message['body'] = t(
399 400
      variable_get('node_notify_default_mailtext', AUTHOR_MAILTEXT),
      array(
401 402 403
        '!commname' => $comment->name,
        '!commtext' => $comment->comment,
        '!commsubj' => $comment->subject,
404
        '!comment_url' => url('node/'. $nid, array('absolute' => TRUE, 'fragment' => 'comment-'. $cid)),
405 406 407 408 409 410 411
        '!node_title' =>  $node->title,
        '!node_teaser' => $node->teaser,
        '!mission' => variable_get('site_mission', ''),
        '!node_body' =>  $node->body,
        '!name' => $author->name,
        '!site' => variable_get('site_name', 'drupal'),
        '!uri' => $base_url,
412
        '!uri_brief' => preg_replace('!^https?://!', '', $base_url),
413
        '!date' => format_date(time()),
414
        '!login_uri' => url('user', array('absolute' => TRUE)),
415
        '!edit_uri' => url('user/'. $alert->uid .'/edit', array('absolute' => TRUE))
416 417
      )
    );
418
    drupal_mail('comment_notify', 'comment_notify_mail', $author->mail, $language, $message);
419 420
    $sent_to[] = $author->mail;
  }
421

422 423 424
  // For "reply to my comments" notifications, figure out what thread this is.
  $thread = db_result(db_query("SELECT thread FROM {comments} WHERE cid = %d", $cid));

425
  //Get the list of commenters to notify
426
  $result = db_query("SELECT DISTINCT c.cid, c.uid, c.name, c.nid, c.mail AS cmail, u.mail AS umail, u.init AS uinit, c.uid, c.name, cn.notify, cn.notify_hash, c.thread
427
    FROM {comments} c INNER JOIN {comment_notify} cn on c.cid = cn.cid LEFT OUTER JOIN {users} u ON c.uid = u.uid
428
    WHERE nid = %d AND cn.notify > 0 AND c.status = 0 AND (u.status = 1 OR u.uid = 0)", $nid
429
  );
430
  // TODO? the original big query had stuff making sure the mail was populated and contained .+@.+ Perhaps check for that here and set notify = 0 if that is the case for this cid
431

432
  while ($alert = db_fetch_object($result)) {
433 434 435
    $umail = empty($alert->umail) ? $alert->uinit : $alert->umail;
    $mail = empty($alert->cmail) ? $umail : $alert->cmail;

436 437
    $relevant_thread = substr($thread, 0, drupal_strlen($alert->thread) -1);
    if ($alert->notify == COMMENT_NOTIFY_COMMENT && strcmp($relevant_thread . '/', $alert->thread) != 0) {
438
      continue;
439
    }
440
    if ($mail != $comment_mail && !in_array($mail, $sent_to) && $alert->uid != $comment->uid) {
441 442
      $message = array();
      if (!empty($alert->uid)) {
greggles's avatar
greggles committed
443
        $recipient_user = user_load(array('uid' => $alert->uid));
444 445 446 447
        $language = user_preferred_language($recipient_user);
      }
      else {
        $language = language_default();
448
      }
449

450
      $message['subject'] = t('!site :: new comment for your post.', array('!site' => variable_get('site_name', 'drupal')));
451
      $message['body'] = t(
452 453
        variable_get('comment_notify_default_mailtext', DEFAULT_MAILTEXT),
        array(
454 455 456
          '!commname' => $comment->name,
          '!commtext' => $comment->comment,
          '!commsubj' => $comment->subject,
457
          '!comment_url' => url('node/'. $nid, array('absolute' => TRUE, 'fragment' => 'comment-'. $cid)),
458 459 460 461 462 463 464
          '!node_title' =>  $node->title,
          '!node_teaser' => $node->teaser,
          '!mission' => variable_get('site_mission', ''),
          '!node_body' =>  $node->body,
          '!name' => $alert->name,
          '!site' => variable_get('site_name', 'drupal'),
          '!uri' => $base_url,
465
          '!uri_brief' => preg_replace('!^https?://!', '', $base_url),
466
          '!date' => format_date(time()),
467 468
          '!login_uri' => url('user', array('absolute' => TRUE)),
          '!edit_uri' => url('user/'. $alert->uid .'/edit', array('absolute' => TRUE)),
469
          '!link1' => url('comment_notify/disable/'. $alert->notify_hash, array('absolute' => TRUE))
470
        )
471
      );
472
      drupal_mail('comment_notify', 'comment_notify_mail', $mail, $language, $message);
473
      $sent_to[] = $mail;
474

475
      // Make the mail link to user's /edit, unless it's an anonymous user.
476
      if ($alert->uid != 0) {
477
        $user_mail = l($mail, 'user/'. $alert->uid .'/edit');
478 479
      }
      else {
480
        $user_mail = check_plain($mail);
481
      }
482

483
      // Add an entry to the watchdog log.
484 485 486 487 488 489 490 491 492
      watchdog(
        'comment_notify',
        'Notified: !user_mail',
        array('!user_mail' => $user_mail),
        WATCHDOG_NOTICE,
        l(t('source comment'), 'node/'. $nid, array(
          'fragment' => 'comment-'. $alert->cid,
        ))
      );
493

494
      // revert to previous (site default) locale
495
      $language = $initial_language;
496 497
    }
  }
498 499 500
  // Record that a notification was sent for this comment so that
  // notifications aren't sent again if the comment is later edited.
  db_query('UPDATE {comment_notify} SET notified = 1 WHERE cid = %d', $cid);
501 502
}

503 504
function comment_notify_mail($key, &$message, $params) {
  $message['subject'] = $params['subject'];
505
  $message['body'][] = $params['body'];
506 507 508
}


509
/**
510
 * Callback for an administrative form to unsubscribe users by e-mail address.
511 512 513 514 515 516 517 518 519 520 521 522 523
 */
function comment_notify_unsubscribe() {
  $form['comment_notify_unsubscribe'] = array();
  $form['comment_notify_unsubscribe']['email_to_unsubscribe'] = array(
    '#type' => 'textfield',
    '#title' => t('Email to unsubscribe'),
  );
  $form['comment_notify_unsubscribe']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Unsubscribe this e-mail'),
  );
  return $form;
}
524

525
/**
526
 * Based on admin submit, do the actual unsubscribe from notifications.
527
 */
528 529
function comment_notify_unsubscribe_submit($form, &$form_state) {
  $email = trim($form_state['values']['email_to_unsubscribe']);
530
  // If they have a uid, use that, otherwise update comments directly
531
  $result = db_result(db_query_range("SELECT uid FROM {users} WHERE mail = '%s'", $email, 0, 1));
532
  if ($result > 0) {
533
    $comments = db_result(db_query("SELECT COUNT(1) FROM {comments} c INNER JOIN {comment_notify} cn ON c.cid = cn.cid WHERE c.uid = %d AND cn.notify > 0", $result));
534
    db_query("UPDATE {comment_notify} SET notify = 0 WHERE cid IN (SELECT cid FROM  {comments} WHERE uid = %d)", $result);
535 536
  }
  else {
537
    $comments = db_result(db_query("SELECT COUNT(1) FROM {comments} c INNER JOIN {comment_notify} cn ON c.cid = cn.cid WHERE c.mail = '%s' AND cn.notify > 0", $email));
538
    db_query("UPDATE {comment_notify} SET notify = 0 WHERE cid IN (SELECT cid FROM {comments} WHERE mail = '%s')", $email);
539 540 541 542 543 544 545 546 547 548
  }
  // Update the admin about the state of this comment notification subscription.
  if ($comments == 0) {
    drupal_set_message(t("There were no active comment notifications for that email."));
  }
  else {
    drupal_set_message(format_plural($comments, "Email unsubscribed from 1 comment notification.",
      "Email unsubscribed from @count comment notifications."));
  }
}
549

550 551 552
/*
 * Page callback for administrative settings form.
 */
553 554
function comment_notify_settings() {
  $form['comment_notify_settings'] = array();
555 556

  // Only perform comment_notify for certain node types (default, all)
557
  $enabled_types = variable_get('comment_notify_node_types', FALSE);
558
  $anonymous_problems = '';
559 560 561
  foreach (node_get_types('names') as $type => $name) {
    $checkboxes[$type] = check_plain($name);
    $default[] = $type;
562 563

    // If they don't have the ability to leave contact info, then we make a report
greggles's avatar
greggles committed
564
    if (isset($enabled_types[$type]) && $enabled_types[$type] && variable_get('comment_anonymous_'. $type, COMMENT_ANONYMOUS_MAYNOT_CONTACT) == COMMENT_ANONYMOUS_MAYNOT_CONTACT) {
565
      $account = user_load(array('uid' => 0));
566
      if (user_access('subscribe to comments', $account)) {
567 568 569 570
        $anonymous_problems[] = l(t('@content-type', array('@content-type' => $name)), 'admin/content/node-type/'. $type);
      }
    }
  }
greggles's avatar
greggles committed
571

572 573
  if (!empty($anonymous_problems)) {
    drupal_set_message(t('Anonymous commenters have the permission to subscribe to comments but cannot leave their contact infromation on the following content types: !types.  You should either disable subscriptions on those types here, revoke the permission for anonymous users, or enable anonymous users to leave their contact information in the comment settings.', array('!types' => implode(', ', $anonymous_problems))));
574 575 576 577
  }

  $form['comment_notify_settings']['comment_notify_node_types'] = array(
    '#type' => 'checkboxes',
578
    '#title' => t('Content types to enable for comment notification'),
579 580 581 582 583
    '#default_value' => variable_get('comment_notify_node_types', $default),
    '#options' => $checkboxes,
    '#description' => t('Comments on content types enabled here will have the option of comment notification.'),
  );

584 585
  $form['comment_notify_settings']['comment_notify_available_alerts'] = array(
    '#type' => 'checkboxes',
586
    '#title' => t('Available subscription modes'),
587
    '#return_value' => 1,
588
    '#default_value' => variable_get('comment_notify_available_alerts', array(COMMENT_NOTIFY_NODE, COMMENT_NOTIFY_COMMENT)),
589
    '#description' => t('Choose which notification subscription styles are available for users'),
590
    '#options' => array(
591 592
      COMMENT_NOTIFY_NODE     => t('All comments'),
      COMMENT_NOTIFY_COMMENT  => t('Replies to my comment')
593 594 595
    )
  );

596 597
  $available_options = array(
      COMMENT_NOTIFY_DISABLED => t('No notifications'),
598 599
      COMMENT_NOTIFY_NODE     => t('All comments'),
      COMMENT_NOTIFY_COMMENT  => t('Replies to my comment')
600 601
    );

602
  $form['comment_notify_settings']['comment_notify_default_anon_mailalert'] = array(
603
    '#type' => 'select',
604
    '#title' => t('Default state for the notification selection box for anonymous users'),
605
    '#return_value' => 1,
606 607 608 609 610 611 612 613 614 615 616
    '#default_value' => variable_get('comment_notify_default_anon_mailalert', COMMENT_NOTIFY_NODE),
    '#options' => $available_options,
  );

  $form['comment_notify_settings']['comment_notify_default_registered_mailalert'] = array(
    '#type' => 'select',
    '#title' => t('Default state for the notification selection box for registered users.'),
    '#return_value' => 1,
    '#default_value' => variable_get('comment_notify_default_registered_mailalert', COMMENT_NOTIFY_NODE),
    '#description' => t('This flag presets the flag for the follow-up notification on the form that anon users will see when posting a comment'),
    '#options' => $available_options,
617 618
  );

619

620 621
  $form['comment_notify_settings']['comment_notify_default_mailtext'] = array(
    '#type' => 'textarea',
622
    '#title' => t('Default mail text for sending out notifications to commenters'),
623 624
    '#description' => t(
      'You can use the following variables to be replaced:
625
      <ul>
626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649
      <li>!commname = the username who posted the comment
      <li>!commtext = the text of the posted comment
      <li>!commsubj = the subject of the posted comment
      <li>!comment_url = the full url of the post and comment - note: if you have paging enabled, this does not work correct - set your max comments per page so that all fit on one page or reverse order them
      <li>!node_title = the title of the node that was commented on
      <li>!node_teaser = the teaser of the node that was commented on
      <li>!node_body = the body of the node that was commented on
      <li>!mission = site_mission text
      <li>!name = username receiving the alert
      <li>!site = your site
      <li>!uri = base_url of site
      <li>!uri_brief = base_url of site w/o http
      <li>!date = the current time
      <li>!login_uri  uri to login the user
      <li>!edit_uri = uri to edit user profile
      <li>!link1 the QUICKLINK to disable future follow-up otifications for the user
      </ul>'
    ),
    '#default_value' => variable_get('comment_notify_default_mailtext', t(DEFAULT_MAILTEXT)),
    '#return_value' => 1,
    '#cols' => 80,
    '#rows' => 15
  );

650 651
  $form['comment_notify_settings']['node_notify_default_mailtext'] = array(
    '#type' => 'textarea',
652
    '#title' => t('Default mail text for sending out the notifications to node authors'),
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678
    '#description' => t(
      'You can use the following variables to be replaced:
      <ul>
      <li>!commname = the username who posted the comment
      <li>!commtext = the text of the posted comment
      <li>!commsubj = the subject of the posted comment
      <li>!comment_url = the full url of the post and comment - note: if you have paging enabled, this does not work correct - set your max comments per page so that all fit on one page or reverse order them
      <li>!node_title = the title of the node that was commented on
      <li>!node_teaser = the teaser of the node that was commented on
      <li>!node_body = the body of the node that was commented on
      <li>!mission = site_mission text
      <li>!name = username receiving the alert
      <li>!site = your site
      <li>!uri = base_url of site
      <li>!uri_brief = base_url of site w/o http
      <li>!date = the current time
      <li>!login_uri  uri to login the user
      <li>!edit_uri = uri to edit user profile
      </ul>'
    ),
    '#default_value' => variable_get('node_notify_default_mailtext', t(AUTHOR_MAILTEXT)),
     '#return_value' => 1,
     '#cols' => 80,
     '#rows' => 15
  );

679 680
  $form['#validate'] = array('comment_notify_settings_validate');

681
  return system_settings_form($form);
682
}
683 684 685 686 687 688 689 690 691 692

function comment_notify_settings_validate($form, &$form_state) {
  $sum_enabled = 0;
  foreach ($form_state['values']['comment_notify_available_alerts'] as $enabled) {
    $sum_enabled += $enabled;
  }
  if (!$sum_enabled) {
    form_set_error('comment_notify_available_alerts', 'You must enable at least one subscription mode.');
  }
}